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Technical Data Sheet
PartsTable / O-RING / NA129
NA129 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC, center_hole_diameter: 0.307 INCHES MINIMUM AND 0.317 INCHES MAXIMUM IN, cross-sectional_height: 0.151 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-115-6327, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
NA129
NSN: 5331-00-115-6327
FSC: 5331 — O-RING
CAGE: 28260 — WASCOMAT OF AMERICA DIV OF BERMIL INDUSTRIES CORP (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC
center_hole_diameter0.307 INCHES MINIMUM AND 0.317 INCHES MAXIMUM IN
cross-sectional_height0.151 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN
NSN5331-00-115-6327
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: NA129 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CENTER HOLE DIAMETER: 0.307 INCHES MINIMUM AND 0.317 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.151 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN
•
MATERIAL: RUBBER SYNTHETIC
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE DIAMETER0.307 INCHES MINIMUM AND 0.317 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.151 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN
MATERIALRUBBER SYNTHETIC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
7280310Interchangeable
interchangeable cross-reference
interchangeable
H00903Interchangeable
interchangeable cross-reference
interchangeable
32.540-1Interchangeable
interchangeable cross-reference
interchangeable
157004Interchangeable
interchangeable cross-reference
interchangeable
41125030Interchangeable
interchangeable cross-reference
interchangeable
10145223Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NA129?
NA129 is a O-RING.
What parts can replace NA129?
There are 16 known substitutes for NA129: 7280310, H00903, 32.540-1 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for NA129?
NA129 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-115-6327. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026